Sons of Liberty Gun Works L89 AR-15 8.5 inch .300BLK Upper Receiver Group Medium Midlength 1-7 Black
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Sons of Liberty Gun Works
Overview
The Sons of Liberty Gun Works L89 AR-15 upper receiver group is a complete assembly designed specifically for the .300 Blackout caliber, featuring an 8.5-inch barrel that balances compactness with effective velocity. Its mid-length gas system ensures reliable cycling and reduced recoil, while the 1:7 twist rate stabilizes a variety of bullet weights, enhancing accuracy and performance. This upper is commonly found in short-barreled builds, making it ideal for close-quarters engagements or compact setups.
Specifications
Sons of Liberty Gun Works L89 AR-15 8.5 inch .300BLK Upper Receiver Group Medium Midlength 1-7 Black
Frequently Built With
Based on build data
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
Lower Receiver
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Charging Handle
Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
Lower ReceiverBuild Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
| Product | Category | Times Built Together |
|---|---|---|
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 360 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 259 |
| Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock | Lower Receiver | 230 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 166 |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | Charging Handle | 160 |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | Lower Receiver | 142 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 300 Blackout | 100% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 100% |
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